Interchangeable advertising sign



FIG. 1 is a front view of the interchangeable advertising sign.

FIG. 2 is a rear view of the interchangeable advertising sign.

FIG. 3 is a side view of the interchangeable advertising sign.

FIG. 4 is a top view of the interchangeable advertising sign.

FIG. 5 is a bottom view of the interchangeable advertising sign.

FIG. 6 is an isometric view of the interchangeable advertising; and,

FIG. 7 is an isometric view of the interchangeable advertising signhaving an advertisement placed inside.

In the drawings, the broken lines represent features which form no partof the claimed design.

The ornamental design for a interchangeable advertising sign, as shownand described.